Record the sixth #11 review

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

docs/IRIS_EXTRACTION_HANDOFF.md

@@ -5,8 +5,8 @@ Not a decisions log; delete it when the extraction is done.
 
 ## Read this first
 
-**Pull request #11 has been reviewed five times; the fifth is answered in
-`01a9b86` and a sixth has not arrived.** Check for one before doing anything
+**Pull request #11 has been reviewed six times ("very close now"); the sixth
+is answered in `444a2cd` and a seventh has not arrived.** Check for one before doing anything
 else:
 
 ```sh
@@ -39,7 +39,7 @@ packing images into arrays like atlas pages, and a bindless `binding_array`
 - Agent fork: `git@git.arirex.me:iris-ai/iris.git`. The bot cannot push
   canonical; work in the fork and open PRs into `iris/iris:main`.
 - **#11** `split/11-texture-bindings`, worktree `/home/bob/repos/iris-pr11`,
-  head `01a9b86`, ten commits on top of `0f6a28b`. Reviewed five times, all
+  head `444a2cd`, twelve commits on top of `0f6a28b`. Reviewed six times, all
   answered.
 - **#12** `split/12-pointer-routing`, worktree `/home/bob/repos/iris-pr12`,
   head `028521b`. A scroll falling through a hovered button. Not reviewed as
@@ -75,6 +75,11 @@ shape:
   carries only what every primitive uses -- window, masks, vertex shader,
   `masked()` -- and its header records the group 0 binding numbers; the atlas
   and sampler are declared by the shaders that read them.
+- **A texture handle is drawn like anything else.** `Painter::primitive` takes
+  `impl PrimitiveLike`: a primitive, or something that yields one and does what
+  else drawing it needs -- a `&TextureHandle` retains its share on the way
+  through. The blanket impl and the one for `&TextureHandle` do not collide,
+  because `Primitive` is ours and no crate can add the overlapping impl.
 - **Order within a layer means nothing**, and the widgets do not rely on it:
   `Stack` gives each child its own layer and `TextEdit` draws its view in a
   child layer above the selection rectangles. Verified with a ui that